The Siemens 3RH2140-2GG20 is a SIRIUS auxiliary contactor in size S00, with 4 normally open contacts (4 NO) rated for 10 A at 24 V.
The 4 NO contacts carry 10 A at 24 V, 4.7 A at 60 V, 3 A at 110 V, 1.2 A at 220 V, and 10 A at 230 V. At higher voltages the rating drops: 3 A at 400 V, 0.5 A at 440 V, 2 A at 500 V, 0.26 A at 600 V, and 1 A at 690 V. That means on a 480 V motor control center you're limited to about 0.5 A through the aux contacts — fine for signaling a PLC input or a contactor coil, not for direct motor switching.
Mounting and environment — fits where you need it
The contactor measures 70 mm high, 45 mm wide, and 73 mm deep — size S00 footprint.